From 77adf4cd648dce41f89469dd185deec6b6b53a0b Mon Sep 17 00:00:00 2001
From: Vikas Gorur <vikas@zresearch.com>
Date: Wed, 18 Feb 2009 17:36:07 +0530
Subject: Added all files

---
 libglusterfs/src/logging.c | 207 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 207 insertions(+)
 create mode 100644 libglusterfs/src/logging.c

(limited to 'libglusterfs/src/logging.c')

diff --git a/libglusterfs/src/logging.c b/libglusterfs/src/logging.c
new file mode 100644
index 000000000..c0b10edca
--- /dev/null
+++ b/libglusterfs/src/logging.c
@@ -0,0 +1,207 @@
+/*
+  Copyright (c) 2006, 2007, 2008 Z RESEARCH, Inc. <http://www.zresearch.com>
+  This file is part of GlusterFS.
+
+  GlusterFS is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published
+  by the Free Software Foundation; either version 3 of the License,
+  or (at your option) any later version.
+
+  GlusterFS is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see
+  <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include <errno.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <time.h>
+#include <locale.h>
+#include <string.h>
+#include <stdlib.h>
+#include "logging.h"
+
+
+static pthread_mutex_t  logfile_mutex;
+static char            *filename = NULL;
+static uint8_t          logrotate = 0;
+
+static FILE            *logfile = NULL;
+static gf_loglevel_t    loglevel = GF_LOG_MAX;
+
+gf_loglevel_t           gf_log_loglevel; /* extern'd */
+FILE                   *gf_log_logfile;
+
+
+void 
+gf_log_logrotate (int signum)
+{
+	logrotate = 1;
+}
+
+
+gf_loglevel_t 
+gf_log_get_loglevel (void)
+{
+	return loglevel;
+}
+
+
+void
+gf_log_set_loglevel (gf_loglevel_t level)
+{
+	gf_log_loglevel = loglevel = level;
+}
+
+
+void 
+gf_log_fini (void)
+{
+	pthread_mutex_destroy (&logfile_mutex);
+}
+
+
+int
+gf_log_init (const char *file)
+{
+	if (!file){
+		fprintf (stderr, "gf_log_init: no filename specified\n");
+		return -1;
+	}
+
+	pthread_mutex_init (&logfile_mutex, NULL);
+
+	filename = strdup (file);
+	if (!filename) {
+		fprintf (stderr, "gf_log_init: strdup error\n");
+		return -1;
+	}
+
+	logfile = fopen (file, "a");
+	if (!logfile){
+		fprintf (stderr,
+			 "gf_log_init: failed to open logfile \"%s\" (%s)\n",
+			 file,
+			 strerror (errno));
+		return -1;
+	}
+
+	gf_log_logfile = logfile;
+
+	return 0;
+}
+
+
+void 
+gf_log_lock (void)
+{
+	pthread_mutex_lock (&logfile_mutex);
+}
+
+
+void 
+gf_log_unlock (void)
+{
+	pthread_mutex_unlock (&logfile_mutex);
+}
+
+
+void
+gf_log_cleanup (void)
+{
+	pthread_mutex_destroy (&logfile_mutex);
+}
+
+
+int
+_gf_log (const char *domain, const char *file, const char *function, int line,
+	 gf_loglevel_t level, const char *fmt, ...)
+{
+	const char  *basename = NULL;
+	FILE        *new_logfile = NULL;
+	va_list      ap;
+	time_t       utime = 0;
+	struct tm   *tm = NULL;
+	char         timestr[256];
+	static char *level_strings[] = {"N", /* NONE */
+					"T", /* TRACE */
+					"C", /* CRITICAL */
+					"E", /* ERROR */
+					"W", /* WARNING */
+					"N", /* TRACE (GF_LOG_NORMAL) */
+					"D", /* DEBUG */
+					""};
+  
+	if (!domain || !file || !function || !fmt) {
+		fprintf (stderr, 
+			 "logging: %s:%s():%d: invalid argument\n", 
+			 __FILE__, __PRETTY_FUNCTION__, __LINE__);
+		return -1;
+	}
+  
+	if (!logfile) {
+		fprintf (stderr, "no logfile set\n");
+		return (-1);
+	}
+
+	if (logrotate) {
+		logrotate = 0;
+
+		new_logfile = fopen (filename, "a");
+		if (!new_logfile) {
+			gf_log ("logrotate", GF_LOG_CRITICAL,
+				"failed to open logfile %s (%s)",
+				filename, strerror (errno));
+			goto log;
+		}
+
+		fclose (logfile);
+		gf_log_logfile = logfile = new_logfile;
+	}
+
+log:
+	utime = time (NULL);
+	tm    = localtime (&utime);
+
+	if (level > loglevel) {
+		goto out;
+	}
+
+	pthread_mutex_lock (&logfile_mutex);
+	{
+		va_start (ap, fmt);
+
+		strftime (timestr, 256, "%Y-%m-%d %H:%M:%S", tm); 
+
+		basename = strrchr (file, '/');
+		if (basename)
+			basename++;
+		else
+			basename = file;
+
+		fprintf (logfile, "%s %s [%s:%d:%s] %s: ",
+			 timestr, level_strings[level],
+			 basename, line, function,
+			 domain);
+      
+		vfprintf (logfile, fmt, ap);
+		va_end (ap);
+		fprintf (logfile, "\n");
+		fflush (logfile);
+	}
+	pthread_mutex_unlock (&logfile_mutex);
+
+out:
+	return (0);
+}
-- 
cgit